Oh cool!
PieFed Meta
Discuss PieFed project direction, provide feedback, ask questions, suggest improvements, and engage in conversations related to the platform organization, policies, features, and community dynamics.
Wiki
Nice!
Will the meta tag federate to other Piefed instances and, more importantly, to Lemmy/Kbin? I guess the posts (and even possibly profile) might still appear on Google as seen through a lemmy instance?
Yes, you're right. Not much we can do about that except provide a way for people to block all instances of whole types of software (e.g. 'block all lemmy instances') which will only make sense if PieFed was 1000x bigger than it is now.
Search visibility is not difficult to implement (set a boolean flag on posts, based on the author's setting), I expect other platforms will do it eventually.
Seems like it's up to Lemmy/Kbin devs to implement that. Furthermore, there are a number of projects that are trying to index all federates ActivityPub messages so they'll likely ignore anything like a request for privacy.
These are good features but I would be very careful calling any of this privacy. You can call it "limiting discoverability" and emphasize that it relies on parties (whether google or kbin) to play ball. In essence the posts are still public, can still be found, can still be linked to but are just not as discoverable as other posts.